Beta Williamson County, TX only — data and coverage are limited during early access.

307 HILLSIDE DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,414 sqftBuilt 1979

Property at a Glance

This home is estimated between $308,633 and $364,289, with a best estimate of $356,169. That places the property above the R210480H - Brushy Creek median of $296,542, in a neighborhood that declined 14.6% over the past year.

Estimated Value Range

$308,633 $364,289
Best Estimate
$356,169
WCAD Value
$288,948
Medium Confidence

Based on 5 comparable properties(4 in the same subdivision)

Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $308,633 and $364,289. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3609 CORNERSTONE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,269 sqft Built 1982
Raw Value $290,537
Adjusted Value $318,055

Adjusted +$32,338 for 145 sqft more living space and -$4,820 for being older. Net adjustment: +$27,518.

3115 FREEMONT ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,303 sqft Built 1984
Raw Value $347,567
Adjusted Value $364,289

Adjusted +$24,755 for 111 sqft more living space and -$8,033 for being older. Net adjustment: +$16,722.

4001 HILLSIDE DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,133 sqft Built 1979
Raw Value $293,501
Adjusted Value $356,169

Adjusted +$62,668 for 281 sqft more living space. Net adjustment: +$62,668.

3 bed 2 bath 1,542 sqft Built 1975
Raw Value $383,067
Adjusted Value $360,948

Adjusted -$28,546 for 128 sqft less living space and +$6,427 for being newer. Net adjustment: -$22,119.

2901 MONUMENT DR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,212 sqft Built 1982
Raw Value $268,403
Adjusted Value $308,633

Adjusted +$45,050 for 202 sqft more living space and -$4,820 for being older. Net adjustment: +$40,230.

The Neighborhood

This home is valued 2.6% below the R210480H - Brushy Creek median of $296,542. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 14.6% over the past year.

R210480H - Brushy Creek

typical
871 Properties
$296,542 Median Value
-14.6% YoY Change
2% Have Pool
94% Have Garage
This Home
$288,948
Median
$296,542

This home is -2.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,531 across all districts. With a homestead exemption claimed, that drops to $4,227 — saving $1,304 per year. That's $352 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,581
Brushy Creek MUDMUD0.3868%$1,118
Williamson CountyCounty0.3694%$1,068
Austin Community Collegespecial0.1034%$299
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$289
Williamson County FM/RdCounty0.0443%$128
Upper Brushy Creek WCIDWater0.0170%$49
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9141%$5,531

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $356,169 would pay approximately $2,223 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

View full property details